diff options
Diffstat (limited to 'archiver/config-log.c')
| -rw-r--r-- | archiver/config-log.c | 1071 |
1 files changed, 0 insertions, 1071 deletions
diff --git a/archiver/config-log.c b/archiver/config-log.c deleted file mode 100644 index 2b08c0b61..000000000 --- a/archiver/config-log.c +++ /dev/null @@ -1,1071 +0,0 @@ -/* -*- mode: c; style: linux -*- */ - -/* config-log.c - * Copyright (C) 2000-2001 Ximian, Inc. - * - * Written by Bradford Hovinen (hovinen@ximian.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA - * 02111-1307, USA. - */ - -#ifdef HAVE_CONFIG_H -# include <config.h> -#endif - -#include <unistd.h> -#include <fcntl.h> -#include <errno.h> -#include <ctype.h> -#include <sys/stat.h> -#include <sys/socket.h> -#include <sys/un.h> - -#include "config-log.h" -#include "location.h" -#include "util.h" - -static GtkObjectClass *parent_class; - -enum { - ARG_0, - ARG_LOCATION -}; - -typedef struct _ConfigLogEntry ConfigLogEntry; -typedef struct _Slave Slave; -typedef struct _IOBuffer IOBuffer; - -struct _ConfigLogEntry -{ - gint id; - struct tm *date; - gchar *backend_id; -}; - -struct _ConfigLogPrivate -{ - Location *location; - - FILE *file_stream; - char *filename; - gboolean deleted; - - GList *log_data; - GList *first_old; -}; - -static void config_log_init (ConfigLog *config_log); -static void config_log_class_init (ConfigLogClass *klass); - -static void config_log_set_arg (GtkObject *object, - GtkArg *arg, - guint arg_id); - -static void config_log_get_arg (GtkObject *object, - GtkArg *arg, - guint arg_id); - -static void config_log_destroy (GtkObject *object); -static void config_log_finalize (GtkObject *object); - -static GList *find_config_log_entry_id (ConfigLog *config_log, - GList *start, - gint id); -static GList *find_config_log_entry_date (ConfigLog *config_log, - GList *start, - struct tm *date); -static GList *find_config_log_entry_backend (ConfigLog *config_log, - GList *start, - const gchar *backend_id); - -static GList *load_log_entry (ConfigLog *config_log, - GList *last); - -static gboolean parse_line (char *buffer, - int *id, - struct tm *time, - char **backend_id); -static gboolean time_geq (struct tm *time1, - struct tm *time2); - -static gboolean do_load (ConfigLog *config_log); -static void do_unload (ConfigLog *config_log, - gboolean write_log); - -static gint get_next_id (ConfigLog *config_log); -static struct tm *get_beginning_of_time (void); -static struct tm *get_current_date (void); -static void write_log (FILE *output, - ConfigLogEntry *entry); -static void dump_log (ConfigLog *config_log); -static gboolean has_nondefaults (ConfigLog *config_log); - -static void config_log_entry_destroy (ConfigLogEntry *entry); - -static void dump_file (FILE *input, - FILE *output); - -GType -config_log_get_type (void) -{ - static GType config_log_type; - - if (!config_log_type) { - GtkTypeInfo config_log_info = { - "ConfigLog", - sizeof (ConfigLog), - sizeof (ConfigLogClass), - (GtkClassInitFunc) config_log_class_init, - (GtkObjectInitFunc) config_log_init, - (GtkArgSetFunc) NULL, - (GtkArgGetFunc) NULL - }; - - config_log_type = - gtk_type_unique (gtk_object_get_type (), - &config_log_info); - } - - return config_log_type; -} - -static void -config_log_init (ConfigLog *config_log) -{ - config_log->p = g_new0 (ConfigLogPrivate, 1); -} - -static void -config_log_class_init (ConfigLogClass *klass) -{ - GtkObjectClass *object_class; - - object_class = GTK_OBJECT_CLASS (klass); - - object_class->destroy = config_log_destroy; - object_class->finalize = config_log_finalize; - object_class->set_arg = config_log_set_arg; - object_class->get_arg = config_log_get_arg; - - gtk_object_add_arg_type ("ConfigLog::location", - GTK_TYPE_POINTER, - GTK_ARG_READWRITE, - ARG_LOCATION); - - parent_class = gtk_type_class (gtk_object_get_type ()); -} - -static void -config_log_set_arg (GtkObject *object, GtkArg *arg, guint arg_id) -{ - ConfigLog *config_log; - - g_return_if_fail (object != NULL); - g_return_if_fail (IS_CONFIG_LOG (object)); - g_return_if_fail (arg != NULL); - - config_log = CONFIG_LOG (object); - - switch (arg_id) { - case ARG_LOCATION: - g_return_if_fail (GTK_VALUE_POINTER (*arg) != NULL); - g_return_if_fail (IS_LOCATION (GTK_VALUE_POINTER (*arg))); - - config_log->p->location = GTK_VALUE_POINTER (*arg); - break; - - default: - break; - } -} - -static void -config_log_get_arg (GtkObject *object, GtkArg *arg, guint arg_id) -{ - ConfigLog *config_log; - - g_return_if_fail (object != NULL); - g_return_if_fail (IS_CONFIG_LOG (object)); - g_return_if_fail (arg != NULL); - - config_log = CONFIG_LOG (object); - - switch (arg_id) { - case ARG_LOCATION: - GTK_VALUE_POINTER (*arg) = config_log->p->location; - break; - default: - arg->type = GTK_TYPE_INVALID; - break; - } -} - -/* Destroys a configuration log data structure and frees all memory - * associated with it, dumping the existing log out to disk - */ - -static void -config_log_destroy (GtkObject *object) -{ - ConfigLog *config_log; - - g_return_if_fail (object != NULL); - g_return_if_fail (IS_CONFIG_LOG (object)); - - config_log = CONFIG_LOG (object); - - do_unload (config_log, !config_log->p->deleted); - - GTK_OBJECT_CLASS (parent_class)->destroy (GTK_OBJECT (config_log)); -} - -/* Deallocates memory associated with a config log structure */ - -static void -config_log_finalize (GtkObject *object) -{ - ConfigLog *config_log; - - g_return_if_fail (object != NULL); - g_return_if_fail (IS_CONFIG_LOG (object)); - - config_log = CONFIG_LOG (object); - - g_free (config_log->p); - - GTK_OBJECT_CLASS (parent_class)->finalize (GTK_OBJECT (config_log)); -} - -/* Loads a configuration log. Creates it if it has not been created - * already - */ - -GtkObject * -config_log_open (Location *location) -{ - GtkObject *object; - - object = gtk_object_new (config_log_get_type (), - "location", location, - NULL); - - config_log_reset_filenames (CONFIG_LOG (object)); - do_load (CONFIG_LOG (object)); - - return object; -} - -/** - * config_log_delete: - * @config_log: - * - * Permanently destroy a config log, including its log file. Also destory the - * object - **/ - -void -config_log_delete (ConfigLog *config_log) -{ - g_return_if_fail (config_log != NULL); - g_return_if_fail (IS_CONFIG_LOG (config_log)); - - if (config_log->p->filename != NULL) - unlink (config_log->p->filename); - - do_unload (config_log, FALSE); - - config_log->p->deleted = TRUE; - gtk_object_destroy (GTK_OBJECT (config_log)); -} - -/* Return the id number of the most recent data written by the given - * backend prior to the given date. If date is NULL, it is assumed to - * be today. - */ - -gint -config_log_get_rollback_id_for_date (ConfigLog *config_log, - struct tm *date, - const gchar *backend_id) -{ - GList *node; - - g_return_val_if_fail (config_log != NULL, -1); - g_return_val_if_fail (IS_CONFIG_LOG (config_log), -1); - g_return_val_if_fail (backend_id != NULL, -1); - - if (config_log->p->log_data == NULL) - config_log->p->log_data = - load_log_entry (config_log, NULL); - - if (date == NULL) - node = config_log->p->log_data; - else - node = find_config_log_entry_date (config_log, - config_log->p->log_data, - date); - - node = find_config_log_entry_backend (config_log, node, backend_id); - - if (!node) - return -1; - else - return ((ConfigLogEntry *) node->data)->id; -} - -/* Return the rollback id that is the given number of steps back from the - * current revision, or -1 if there is no such id - */ - -gint -config_log_get_rollback_id_by_steps (ConfigLog *config_log, - guint steps, - const gchar *backend_id) -{ - GList *node; - - g_return_val_if_fail (config_log != NULL, -1); - g_return_val_if_fail (IS_CONFIG_LOG (config_log), -1); - g_return_val_if_fail (backend_id != NULL, -1); - - node = config_log->p->log_data; - - if (node == NULL) - node = load_log_entry (config_log, node); - - while (node != NULL && steps-- > 0) { - node = find_config_log_entry_backend - (config_log, node, backend_id); - - if (((ConfigLogEntry *) node->data)->date->tm_year == 0) - return ((ConfigLogEntry *) node->data)->id; - - if (steps > 0) { - if (node->next == NULL) - node = load_log_entry - (config_log, node); - else - node = node->next; - } - } - - if (node != NULL) - return ((ConfigLogEntry *) node->data)->id; - else - return -1; -} - -/* Return the backend that generated the data with the given id */ - -const gchar * -config_log_get_backend_id_for_id (ConfigLog *config_log, gint id) -{ - GList *node; - - g_return_val_if_fail (config_log != NULL, NULL); - g_return_val_if_fail (IS_CONFIG_LOG (config_log), NULL); - g_return_val_if_fail (id >= 0, NULL); - - if (config_log->p->log_data == NULL) - config_log->p->log_data = - load_log_entry (config_log, NULL); - - node = find_config_log_entry_id (config_log, - config_log->p->log_data, id); - - if (!node) - return NULL; - else - return ((ConfigLogEntry *) node->data)->backend_id; -} - -/* Return the date the data with the given id was written */ - -const struct tm * -config_log_get_date_for_id (ConfigLog *config_log, gint id) -{ - GList *node; - - g_return_val_if_fail (config_log != NULL, NULL); - g_return_val_if_fail (IS_CONFIG_LOG (config_log), NULL); - g_return_val_if_fail (id >= 0, NULL); - - if (config_log->p->log_data == NULL) - config_log->p->log_data = - load_log_entry (config_log, NULL); - - node = find_config_log_entry_id (config_log, - config_log->p->log_data, id); - - if (!node) - return NULL; - else - return ((ConfigLogEntry *) node->data)->date; -} - -/** - * config_log_write_entry: - * @config_log: - * @backend_id: Backend id for the log entry to write - * @is_default_data: TRUE iff the corresponding data are to be considered - * "factory defaults" for the purpose of rollback - * - * Writes a new log entry to the config log - * - * Returns the id number of the entry on success or -1 on failure - **/ - -gint -config_log_write_entry (ConfigLog *config_log, - const gchar *backend_id, - gboolean is_default_data) -{ - ConfigLogEntry *entry; - - g_return_val_if_fail (config_log != NULL, -1); - g_return_val_if_fail (IS_CONFIG_LOG (config_log), -1); - g_return_val_if_fail (backend_id != NULL, -1); - - if (is_default_data && has_nondefaults (config_log)) - return -1; - - entry = g_new0 (ConfigLogEntry, 1); - entry->id = get_next_id (config_log); - entry->backend_id = g_strdup (backend_id); - - if (is_default_data) - entry->date = get_beginning_of_time (); - else - entry->date = get_current_date (); - - config_log->p->log_data = - g_list_prepend (config_log->p->log_data, entry); - - dump_log (config_log); - - return entry->id; -} - -/** - * config_log_iterate: - * @config_log: - * @callback: - * @data: - * - * Iterate through all log entries an invoke the given callback on each one, - * passing the id, date created, and backend id to it - **/ - -void -config_log_iterate (ConfigLog *config_log, ConfigLogIteratorCB callback, - gpointer data) -{ - GList *node; - ConfigLogEntry *entry; - - g_return_if_fail (config_log != NULL); - g_return_if_fail (IS_CONFIG_LOG (config_log)); - g_return_if_fail (callback != NULL); - - node = config_log->p->log_data; - while (node != NULL) { - entry = (ConfigLogEntry *) node->data; - if (callback (config_log, entry->id, entry->backend_id, - entry->date, data)) break; - - if (node->next == NULL) - node = load_log_entry (config_log, node); - else - node = node->next; - } -} - -/** - * config_log_reset_filenames: - * @config_log: - * - * Rereads the log's location data to determine filenames - **/ - -void -config_log_reset_filenames (ConfigLog *config_log) -{ - g_return_if_fail (config_log != NULL); - g_return_if_fail (IS_CONFIG_LOG (config_log)); - - if (config_log->p->filename != NULL) - g_free (config_log->p->filename); - - config_log->p->filename = - g_concat_dir_and_file (location_get_path - (config_log->p->location), - "config.log"); -} - -/** - * config_log_reload: - * @config_log: - * - * Reloads the entire config log, throwing out any newly created entries - **/ - -void -config_log_reload (ConfigLog *config_log) -{ - g_return_if_fail (config_log != NULL); - g_return_if_fail (IS_CONFIG_LOG (config_log)); - - do_unload (config_log, FALSE); - config_log_reset_filenames (config_log); - do_load (config_log); -} - -/** - * config_log_garbage_collect: - * @config_log: - * @backend_id: Backend on which to iterate - * @callback: Callback to issue on any log entry to be culled - * @data: Arbitrary data to pass to callback - * - * Iterates through the configuration log and culls excess entries for the given - * backend. - * - * The algorithm we use is the following: We scan entries in temporal order. For - * each consecutive pair of entries, let t1 be the time at which the former was - * made and t2 be the time of the latter. If K_CONST * (t2 - t1) < t2, then we - * delete the former entry and issue the callback. We select K_CONST - * appropriately, i.e. a user will likely not want to keep entries separated by - * under five minutes for very long, while she may want to keep entries - * separated by two weeks for much longer. - */ - -#define K_CONST 15 - -void -config_log_garbage_collect (ConfigLog *config_log, - gchar *backend_id, - GarbageCollectCB callback, - gpointer data) -{ - GList *node, *list = NULL; - ConfigLogEntry *e1, *e2; - time_t t1, t2, now; - struct tm now_b, *tmp_date; - - g_return_if_fail (config_log != NULL); - g_return_if_fail (IS_CONFIG_LOG (config_log)); - - if (config_log->p->log_data == NULL) - config_log->p->log_data = - load_log_entry (config_log, NULL); - - node = config_log->p->log_data; - - /* We build a list of config log nodes to facilitate removing the nodes - * from the main cache at a later point - */ - - while (1) { - node = find_config_log_entry_backend - (config_log, node, backend_id); - - if (node == NULL) - break; - - list = g_list_prepend (list, node); - node = node->next; - } - - if (list == NULL) return; - - now = time (NULL); - gmtime_r (&now, &now_b); - now = mktime (&now_b); - - for (node = list; node->next != NULL; node = node->next) { - e1 = ((GList *) node->data)->data; - e2 = ((GList *) node->next->data)->data; - - tmp_date = dup_date (e1->date); - t1 = mktime (tmp_date); - g_free (tmp_date); - - tmp_date = dup_date (e2->date); - t2 = mktime (tmp_date); - g_free (tmp_date); - - if (now < t2 || now < t1) - g_warning ("Log entry is in the future!"); - if (t1 > t2) - g_warning ("Log entries are out of order!"); - - if (K_CONST * difftime (t2, t1) < difftime (now, t2)) { - config_log->p->log_data = - g_list_remove_link (config_log->p->log_data, node->data); - callback (config_log, backend_id, e1->id, data); - } - } - - g_list_free (list); - - config_log->p->first_old = NULL; -} - -/* Find the config log entry with the id given, starting at the given - * node. Return a pointer to the node. - */ - -static GList * -find_config_log_entry_id (ConfigLog *config_log, GList *start, gint id) -{ - GList *last; - ConfigLogEntry *entry; - - g_return_val_if_fail (config_log != NULL, NULL); - g_return_val_if_fail (IS_CONFIG_LOG (config_log), NULL); - g_return_val_if_fail (id >= 0, NULL); - - if (!start) return NULL; - - while (start != NULL) { - last = start; - entry = (ConfigLogEntry *) start->data; - if (entry->id == id) - return start; - else if (entry->id < id) - return NULL; - start = start->next; - } - - while (1) { - start = load_log_entry (config_log, last); - if (start == NULL) return NULL; - entry = (ConfigLogEntry *) start->data; - if (entry->id == id) - return start; - else if (entry->id < id) - return NULL; - } - - return NULL; -} - -/* Find the first config log entry made prior to the given date, - * starting at the given node. Return a pointer to the node. - */ - -static GList * -find_config_log_entry_date (ConfigLog *config_log, GList *start, - struct tm *date) -{ - GList *last; - ConfigLogEntry *entry; - - g_return_val_if_fail (config_log != NULL, NULL); - g_return_val_if_fail (IS_CONFIG_LOG (config_log), NULL); - g_return_val_if_fail (date != NULL, NULL); - - if (!start) return NULL; - - while (start != NULL) { - last = start; - entry = (ConfigLogEntry *) start->data; - if (time_geq (date, entry->date)) - return start; - start = start->next; - } - - while (1) { - start = load_log_entry (config_log, last); - if (start == NULL) return NULL; - entry = (ConfigLogEntry *) start->data; - if (time_geq (date, entry->date)) - return start; - } - - return NULL; -} - -/* Find the first config log entry made by the given backend, - * starting at the given node. Return a pointer to the node. - */ - -static GList * -find_config_log_entry_backend (ConfigLog *config_log, - GList *start, - const gchar *backend_id) -{ - GList *last; - ConfigLogEntry *entry; - - g_return_val_if_fail (config_log != NULL, NULL); - g_return_val_if_fail (IS_CONFIG_LOG (config_log), NULL); - g_return_val_if_fail (backend_id != NULL, NULL); - - if (!start) return NULL; - - while (start != NULL) { - last = start; - entry = (ConfigLogEntry *) start->data; - if (!strcmp (entry->backend_id, backend_id)) - return start; - start = start->next; - } - - while (1) { - start = load_log_entry (config_log, last); - if (start == NULL) return NULL; - entry = (ConfigLogEntry *) start->data; - if (!strcmp (entry->backend_id, backend_id)) - return start; - } - - return NULL; -} - -/* Loads a log entry from the given file and attaches it to the end of the config log */ - -static GList * -load_log_entry (ConfigLog *config_log, - GList *last) -{ - gchar *backend_id; - gchar buffer[1024]; - ConfigLogEntry *entry; - gboolean success; - - g_return_val_if_fail (config_log != NULL, NULL); - g_return_val_if_fail (IS_CONFIG_LOG (config_log), NULL); - - if (config_log->p->file_stream == NULL || feof (config_log->p->file_stream)) - return NULL; - - if (fgets (buffer, 1024, config_log->p->file_stream) == NULL) - return NULL; - - entry = g_new0 (ConfigLogEntry, 1); - entry->date = g_new0 (struct tm, 1); - success = parse_line (buffer, &entry->id, - entry->date, &backend_id); - - if (success) { - entry->backend_id = g_strdup (backend_id); - - last = g_list_append (last, entry); - - if (config_log->p->log_data == NULL) - config_log->p->log_data = last; - - if (config_log->p->first_old == NULL) - config_log->p->first_old = last; - - return g_list_find (last, entry); - } else { - g_free (entry->date); - g_free (entry); - return NULL; - } -} - -/* Parse a line from the log file. All pointers must be valid. - * - * Note: backend just points to somewhere in buffer, so it becomes - * invalid the next time the buffer is overwritten. If there's a - * trailing newline, it is not chopped off. - * - * Returns TRUE on success and FALSE on parse error; if FALSE is - * returned, the values placed in the variables given are undefined. - */ - -static gboolean -parse_line (char *buffer, int *id, struct tm *date, char **backend_id) -{ - unsigned int len; - - sscanf (buffer, "%x", id); - - while (isxdigit (*buffer)) buffer++; - - if (!isspace (*buffer) || !isdigit (*(buffer + 1))) return FALSE; - buffer++; - - if (extract_number (&buffer, &date->tm_year, 4) == FALSE) - return FALSE; - if (extract_number (&buffer, &date->tm_mon, 2) == FALSE) - return FALSE; - if (extract_number (&buffer, &date->tm_mday, 2) == FALSE) - return FALSE; - - date->tm_year -= 1900; - date->tm_mon--; - - if (!isspace (*buffer) || !isdigit (*(buffer + 1))) return FALSE; - buffer++; - - if (extract_number (&buffer, &date->tm_hour, 2) == FALSE) - return FALSE; - if (*buffer != ':') return FALSE; buffer++; - if (extract_number (&buffer, &date->tm_min, 2) == FALSE) - return FALSE; - if (*buffer != ':') return FALSE; buffer++; - if (extract_number (&buffer, &date->tm_sec, 2) == FALSE) - return FALSE; - -#ifdef __USE_BSD - date->tm_gmtoff = 0; - date->tm_zone = "GMT"; -#endif - - if (!isspace (*buffer) || *(buffer + 1) == '\0') return FALSE; - buffer++; - - len = strlen (buffer); - if (buffer[len - 1] == '\n') - buffer[len - 1] = '\0'; - - *backend_id = buffer; - - return TRUE; -} - -/* Return TRUE if the first given struct tm is greater than or equal - * to the second given struct tm; FALSE otherwise - */ - -static gboolean -time_geq (struct tm *time1, struct tm *time2) -{ - if (time1->tm_year > time2->tm_year) return TRUE; - if (time1->tm_year < time2->tm_year) return FALSE; - if (time1->tm_mon > time2->tm_mon) return TRUE; - if (time1->tm_mon < time2->tm_mon) return FALSE; - if (time1->tm_mday > time2->tm_mday) return TRUE; - if (time1->tm_mday < time2->tm_mday) return FALSE; - if (time1->tm_hour > time2->tm_hour) return TRUE; - if (time1->tm_hour < time2->tm_hour) return FALSE; - if (time1->tm_min > time2->tm_min) return TRUE; - if (time1->tm_min < time2->tm_min) return FALSE; - if (time1->tm_sec >= time2->tm_sec) return TRUE; - return FALSE; -} - -/* Opens up a configuration log. Assumes all the structures are - * already initialized. Creates the log if not already done. - * - * Returns TRUE on success and FALSE on failure (unable to open output - * file) - */ - -static gboolean -do_load (ConfigLog *config_log) -{ - g_return_val_if_fail (config_log != NULL, FALSE); - g_return_val_if_fail (IS_CONFIG_LOG (config_log), FALSE); - - config_log->p->file_stream = fopen (config_log->p->filename, "r"); - config_log->p->first_old = NULL; - - return TRUE; -} - -/* Closes the input file for a given log and dumps and clears the - * cache - */ - -static void -do_unload (ConfigLog *config_log, gboolean write_log) -{ - g_return_if_fail (config_log != NULL); - g_return_if_fail (IS_CONFIG_LOG (config_log)); - - if (config_log->p->deleted) return; - - if (write_log) dump_log (config_log); - - if (config_log->p->file_stream) { - fclose (config_log->p->file_stream); - config_log->p->file_stream = NULL; - } - - if (config_log->p->filename) { - g_free (config_log->p->filename); - config_log->p->filename = NULL; - } - - g_list_foreach (config_log->p->log_data, (GFunc) config_log_entry_destroy, NULL); - g_list_free (config_log->p->log_data); - config_log->p->log_data = NULL; -} - -/* Returns the next id number in the sequence */ - -static gint -get_next_id (ConfigLog *config_log) -{ - if (config_log->p->log_data == NULL) { - if (load_log_entry (config_log, NULL) == NULL) - return 0; - } - - return ((ConfigLogEntry *) config_log->p->log_data->data)->id + 1; -} - -/* Return a newly allocated struct tm with all zeros */ - -static struct tm * -get_beginning_of_time (void) -{ - return g_new0 (struct tm, 1); -} - -/* Return a newly allocated struct tm with the current time */ - -static struct tm * -get_current_date (void) -{ - time_t current_time; - struct tm time_2, *time_1 = &time_2, *ret; - - current_time = time (NULL); - gmtime_r (¤t_time, time_1); - ret = g_new (struct tm, 1); - memcpy (ret, time_1, sizeof (struct tm)); - return ret; -} - -/* Write out a single log entry */ - -static void -write_log (FILE *output, ConfigLogEntry *entry) -{ - g_return_if_fail (output != NULL); - g_return_if_fail (entry != NULL); - g_return_if_fail (entry->id >= 0); - g_return_if_fail (entry->date != NULL); - g_return_if_fail (entry->backend_id != NULL); - - fprintf (output, "%08x %04d%02d%02d %02d:%02d:%02d %s\n", - entry->id, entry->date->tm_year + 1900, - entry->date->tm_mon + 1, entry->date->tm_mday, - entry->date->tm_hour, entry->date->tm_min, - entry->date->tm_sec, entry->backend_id); -} - -/* Writes out the entire current configuration log to the disk */ - -static void -dump_log (ConfigLog *config_log) -{ - char *filename_out; - GList *first; - FILE *input, *output; - - g_return_if_fail (config_log != NULL); - g_return_if_fail (IS_CONFIG_LOG (config_log)); - g_return_if_fail (config_log->p->location != NULL); - g_return_if_fail (IS_LOCATION (config_log->p->location)); - g_return_if_fail (location_get_path (config_log->p->location) != NULL); - - if (config_log->p->deleted) return; - - filename_out = g_concat_dir_and_file (location_get_path - (config_log->p->location), - "config.log.out"); - - output = fopen (filename_out, "w"); - - if (output == NULL) { - g_critical ("Could not open output file: %s", - g_strerror (errno)); - return; - } - - for (first = config_log->p->log_data; - first != config_log->p->first_old; - first = first->next) - write_log (output, first->data); - - if (config_log->p->file_stream != NULL && - ((config_log->p->first_old == NULL && config_log->p->log_data == NULL) || - (config_log->p->first_old != NULL && config_log->p->log_data != NULL))) - { - input = fopen (config_log->p->filename, "r"); - dump_file (input, output); - fclose (input); - } - - config_log->p->first_old = config_log->p->log_data; - - fclose (output); - - if (config_log->p->filename) - rename (filename_out, config_log->p->filename); -} - -/* Return TRUE if the config log has entries made by actual configuration - * changes, as opposed to default values placed there when the location was - * initialized - */ - -static gboolean -has_nondefaults (ConfigLog *config_log) -{ - ConfigLogEntry *first; - - if (config_log->p->log_data == NULL) - load_log_entry (config_log, config_log->p->log_data); - - if (config_log->p->log_data == NULL) - return FALSE; - - first = config_log->p->log_data->data; - - if (first->date->tm_year == 0) - return FALSE; - else - return TRUE; -} - -/* Deallocates the given config log entry structure */ - -static void -config_log_entry_destroy (ConfigLogEntry *entry) -{ - g_return_if_fail (entry != NULL); - g_return_if_fail (entry->date != NULL); - g_return_if_fail (entry->backend_id != NULL); - - g_free (entry->date); - g_free (entry->backend_id); - g_free (entry); -} - -/* Dumps the entire contents from one stream into another */ - -static void -dump_file (FILE *input, FILE *output) -{ - char buffer[4096]; - size_t len; - - g_return_if_fail (input != NULL); - g_return_if_fail (output != NULL); - - while (!feof (input)) { - len = fread (buffer, sizeof (char), 4096, input); - fwrite (buffer, sizeof (char), len, output); - } -} |